Due to its location in the upper left abdomen ... discomfort may also extend to the left side, potentially causing pain around the left rib cage as the stomach is situated in this region.

Pain on the right side of the chest can result from muscle strain or digestive problems. It can also indicate an injury, cardiovascular disease, a serious lung problem, or another health condition ...

The pancreas and liver sit deep within the abdomen, just under the rib cage. Sometimes, problems with these organs cause pain on the upper right ... on the right or left side, especially if ...

Yet, for many people, rotation is a struggle — leading to stiffness, discomfort and chronic back pain ... where the upper back rounds forward, compressing the rib cage and restricting movement.